The copper-nickel-platinum group (PGM) undertaking is situated 50 km northeast of Thunder Bay, Ontario.
The PEA was ready by Nordmin Engineering and examines underground mining at a mean charge of 4,450 t/d (3,600 t/d ore and 850 t/d waste). It additionally features a new stand-alone milling complicated and tailings administration facility. The mill can be fed from each the Present and Escape deposits.
The Present deposit is accessed through a portal from the floor and would have a 12-month improvement interval. Mining within the Present and Bridge zones would happen within the first three years of manufacturing. Within the fourth yr, mining would start on the Excessive Grade zone of the Escape deposit.
When each mines are in operation, every will produce 1,800 t/d ore for the mill. Each longhole open stoping and drift and fill mining are deliberate.
A traditional semi-autogenous grinding (SAG)-pebble mill-ball mill circuit is proposed for the mineral processing plant. This may be adopted by flotation to provide two marketable concentrates – copper-PGM and bulk. The 2 merchandise could possibly be despatched to separate regional smelters.
Over a 10-year life, the Thunder Bay undertaking may generate C$2.2 billion in complete revenues. Complete steel manufacturing throughout that point is predicted to be 629,000 oz. platinum, 618,000 oz. palladium, 111 million lb. copper, 57 million lb. nickel, 38,000 oz. gold, and 850,000 oz. silver (2.9 million oz. platinum-equivalent).
The mixed indicated useful resource for the Present and Escape deposits is 14.6 million tonnes grading 1.54 g/t palladium, 1.58 g/t platinum, 0.20 g/t gold, 2.30 g/t silver, 0.42% copper, 0.23% nickel, 167 g/t cobalt, and 0.05% rhenium.
The inferred useful resource is 8.1 million tonnes grading 0.69 g/t palladium, 0.67 g/t platinum, 0.07 g/t gold, 1.07 g/t silver, 0.33% copper, 0.15% nickel, 138 g/t cobalt, and 0.01% rhenium.
(This text first appeared within the Canadian Mining Journal)